口服与静脉注射 Clofarabine 在高危骨髓增生异常及急性白血病中的药代动力学研究

数据集获取

源站：https://clinicaltrials.gov/study/NCT01169012

标准获取流程：

1. 访问源站链接，注册/登录账号；
2. 进入数据集详情页，按页面指引申请权限或直接下载；
3. 部分平台提供 SDK，例如：
   • OpenDataLab: pip install openxlab 后 openxlab.dataset.get(...)
   • ModelScope: pip install modelscope 后 modelscope download
   • 天池: 登录后页面提供直链下载
     以源站「数据下载/使用文档」页面为准。

数据说明

Conditions: Myelodysplastic Syndrome, Acute Myeloid Leukemia, Acute Lymphoblastic Leukemia, Chronic Myelomonocytic Leukemia. Clofarabine is a second-generation adenosine nucleoside analog with activity in hematologic malignancies. It has gained FDA-approval for use in children with relapsed-refractory ALL, and early phase studies have shown activity in patients with AML and MDS. Clofarabine’s activity in acute leukemias and MDS has been established in multiple phase I and II studies, both alone and in combination with cytosine arabinoside (araC), and in both relapsed-refractory patients, and untreated older adults. Pharmacokinetic investigations comparing I.V. and P.O. dosing within the same patient have not been performed. Furthermore, the effect of OCT2 inhibition on clofarabine pharmacokinetics in humans has not been investigated. The potential for enhanced drug exposure and toxicity in the setting of OCT2 inhibition is of clinical importance as clofarabine gains broader indications in hematologic oncology. In particular, bioavailability and the OCT2 mechanism are important with prolonged drug exposure and oral administration in older adults, who are likely to have impaired renal function and take other drugs that interact with OCT2 such as metformin (a substrate) and trimethoprim (one of several inhibitors). OCT2 is expressed on several solid tumor cell lines, and is thought to play a role in tumor uptake of cationic cytotoxins. Whether OCT2 or other transporters are expressed on leukemic blasts, or influence drug uptake has not been investigated. However, variation in the expression of drug transporters could be one of several mechanistic explanations for the fact that clofarabine-responsive patients accumulate intracellular clofarabine triphosphate, whereas non-responders do not. Single nucleotide polymorphisms have been identified in the gene encoding OCT2, which may influence substrate uptake or inhibitor potency. Such polymorphisms may explain variation in clofarabine pharmacokinetics and pharmacodynamics between individuals, but the potential for this phenomenon has not previous

数据加载示例（图像类）

from PIL import Image
import glob, os

files = (glob.glob(os.path.join(path, "**", "*.png"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.jpg"), recursive=True)
       + glob.glob(os.path.join(path, "**", "*.tif"), recursive=True))
print("图像文件数:", len(files))
img = Image.open(files[0]); print("尺寸/模式:", img.size, img.mode)

# torchvision Dataset 方式:
# from torchvision import datasets
# ds = datasets.ImageFolder(path)  # 要求 子目录=类别

目录组织与标注格式以源站说明和下载后实际文件为准。